Earlier this month, Cogan sent the convicted ringleader of the crew, Edward (Super Ed) Carrillo, to prison for 10 1/2 years.

Brooklyn federal prosecutors said they have recordings of Monroe as he broke the news to Carrillo last year about a West Virginia woman who died — "went out" — after ingesting the opioids he'd distributed.

Earlier this month, convicted ringleader of the crew Edward (Super Ed) Carrillo was sent to prison for 10 1/2 years. (NYPD)

Carillo then started worrying what the death would mean for business.

Meanwhile, Monroe, 46, mailed another package with hundreds of fentanyl pills to a West Virginia co-conspirator two weeks after sharing the news of the fatal overdose with Carrillo. Monroe was also a crack cocaine supplier to dealers in the Queensbridge community, prosectors said.

Acting Brooklyn U.S. Attorney Bridget Rohde said the sentence "holds Monroe accountable for contributing to the deadly opioid epidemic facing this country."